Add search functionality

Signed-off-by: alperozturk <alper_ozturk@proton.me>

app/src/main/java/com/owncloud/android/ui/activity/ReceiveExternalFilesActivity.java

@@ -705,6 +705,8 @@ public class ReceiveExternalFilesActivity extends FileActivity
         }
     }
 
+    private UploaderAdapter uploadAdapter;
+
     private void populateDirectoryList() {
         setupEmptyList();
         setupToolbar();
@@ -746,14 +748,14 @@ public class ReceiveExternalFilesActivity extends FileActivity
 
                 files = sortFileList(files);
 
-                List<Map<String, Object>> data = new LinkedList<>();
+                List<Map<String, OCFile>> data = new LinkedList<>();
                 for (OCFile f : files) {
-                    Map<String, Object> h = new HashMap<>();
+                    Map<String, OCFile> h = new HashMap<>();
                     h.put("dirname", f);
                     data.add(h);
                 }
 
-                UploaderAdapter sa = new UploaderAdapter(this,
+                uploadAdapter = new UploaderAdapter(this,
                                                          data,
                                                          R.layout.uploader_list_item_layout,
                                                          new String[]{"dirname"},
@@ -763,7 +765,7 @@ public class ReceiveExternalFilesActivity extends FileActivity
                                                          syncedFolderProvider,
                                                          viewThemeUtils);
 
-                binding.list.setAdapter(sa);
+                binding.list.setAdapter(uploadAdapter);
                 binding.list.setVisibility(View.VISIBLE);
             }
             MaterialButton btnChooseFolder = binding.uploaderChooseFolder;
@@ -1025,11 +1027,7 @@ public class ReceiveExternalFilesActivity extends FileActivity
         searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
             @Override
             public boolean onQueryTextSubmit(String query) {
-                UnifiedSearchFragment unifiedSearchFragment = UnifiedSearchFragment.Companion.newInstance(query);
-                FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
-                transaction.addToBackStack(null);
-                transaction.replace(R.id.upload_files_layout, unifiedSearchFragment, TAG_LIST_OF_FILES);
-                transaction.commit();
+                uploadAdapter.filter(query);
                 return false;
             }
 

app/src/main/java/com/owncloud/android/ui/adapter/UploaderAdapter.java

@@ -43,10 +43,13 @@ import com.owncloud.android.utils.DisplayUtils;
 import com.owncloud.android.utils.MimeTypeUtil;
 import com.owncloud.android.utils.theme.ViewThemeUtils;
 
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import static java.util.Collections.addAll;
+
 public class UploaderAdapter extends SimpleAdapter {
 
     private final Context mContext;
@@ -54,10 +57,13 @@ public class UploaderAdapter extends SimpleAdapter {
     private final FileDataStorageManager mStorageManager;
     private final LayoutInflater inflater;
     private final ViewThemeUtils viewThemeUtils;
-    private SyncedFolderProvider syncedFolderProvider;
+    private final SyncedFolderProvider syncedFolderProvider;
+
+    private final List<Map<String, OCFile>> originalData;
+    private final List<Map<String, OCFile>> filteredData;
 
     public UploaderAdapter(Context context,
-                           List<? extends Map<String, ?>> data,
+                           List<Map<String, OCFile>> data,
                            int resource,
                            String[] from,
                            int[] to,
@@ -72,6 +78,39 @@ public class UploaderAdapter extends SimpleAdapter {
         this.syncedFolderProvider = syncedFolderProvider;
         inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         this.viewThemeUtils = viewThemeUtils;
+
+        originalData = data;
+        filteredData = new ArrayList<>(originalData);
+    }
+
+    public void filter(String query) {
+        filteredData.clear();
+
+        for (Map<String, OCFile> data : originalData) {
+            OCFile file = data.get("dirname");
+            String fileName = file.getFileName();
+
+            if (fileName.toLowerCase().contains(query.toLowerCase())) {
+                filteredData.add(data);
+            }
+        }
+
+        notifyDataSetChanged();
+    }
+
+    @Override
+    public int getCount() {
+        return filteredData.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return filteredData.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
     }
 
     @Override
@@ -81,8 +120,7 @@ public class UploaderAdapter extends SimpleAdapter {
             vi = inflater.inflate(R.layout.uploader_list_item_layout, parent, false);
         }
 
-        HashMap<String, OCFile> data = (HashMap<String, OCFile>) getItem(position);
-        OCFile file = data.get("dirname");
+        OCFile file = ((HashMap<String, OCFile>) getItem(position)).get("dirname");
 
         TextView filename = vi.findViewById(R.id.filename);
         filename.setText(file.getFileName());